Hammertoe: When Does It Need to Be Fixed Surgically?
A hammertoe that starts out flexible and mildly uncomfortable can gradually become rigid, painful, and resistant to any conservative measure. Understanding where your toe is on that spectrum determines your options.
Hammertoe is one of the most common toe deformities I see in practice — and one of the most mismanaged. Patients tolerate it for years because “it’s not that bad yet,” not realizing that the window for simple, conservative correction narrows as the toe progressively stiffens. By the time the toe is rigid and a painful corn has worn through the skin over the bent joint, the options are considerably more limited than they would have been a few years earlier. The good news: when you know what to look for, hammertoe is very treatable — at every stage.
What Is a Hammertoe?
A hammertoe is a flexion deformity of one or more of the lesser toes — the second through fifth toes. The characteristic deformity occurs at the proximal interphalangeal (PIP) joint, which is the middle joint of the toe. When the PIP joint is abnormally flexed downward, the toe assumes a bent, arch-like posture that resembles the head of a hammer — hence the name.
The toe deformity is driven by an imbalance between the intrinsic muscles of the foot (the small muscles within the foot that straighten and stabilize the toes) and the extrinsic muscles (the larger muscles of the leg that flex and extend the toes via long tendons). When the intrinsic muscles are overpowered — by tight footwear, a long second metatarsal, or an adjacent bunion that displaces the toe — the extrinsic flexor tendons dominate, pulling the toe into its characteristic bent position.
Left unaddressed, the imbalance worsens. The tendon and joint capsule progressively shorten and tighten. What begins as a toe that can still be manually straightened becomes one that is fixed in its bent position — and at that point, conservative treatment can no longer correct the deformity, only manage its symptoms.
Hammertoe vs. Mallet Toe vs. Claw Toe
These three terms are often used interchangeably by patients — and sometimes by non-specialist providers — but they describe distinct deformities involving different joints. The distinction matters clinically because the joint involved determines both the physical examination findings and the surgical correction required.
Flexion deformity at the proximal interphalangeal (PIP) joint — the middle joint of the toe. The toe bends downward at its midpoint, creating the hammer silhouette. The most common lesser toe deformity. Most frequently affects the second toe. Corn formation typically occurs on the dorsal (top) surface of the PIP joint from shoe pressure.
Flexion deformity at the distal interphalangeal (DIP) joint — the joint closest to the tip of the toe. The tip of the toe curls downward. Painful corn or callus typically forms at the very tip of the toe (end-on pressure) or just below the nail. Often caused by tight shoe box pressing on the tip of an abnormally long toe.
Flexion deformity at both the PIP and DIP joints combined with hyperextension at the MTP joint — where the toe meets the foot. The entire toe curls into a claw posture and is often elevated at its base. Claw toes are more commonly associated with neurological conditions (Charcot-Marie-Tooth, diabetic neuropathy) and rheumatoid arthritis.
The distinction between these three deformities is made on clinical examination and X-ray. Feel for the bent joint — if it is the middle of the toe, it is a hammertoe. If the tip droops downward but the middle is straight, it is a mallet toe. If the toe is bent at both joints and the base rises up off the ground, it is a claw toe. In practice, many patients have combinations of these deformities, and the treatment approach addresses each abnormal joint individually.
What Causes Hammertoe?
Hammertoe is rarely caused by a single factor. Most cases result from a combination of structural predisposition, mechanical overload, and — in many cases — footwear history.
Common Contributing Factors
One of the most important — and most commonly overlooked — causes of second toe hammertoe is an adjacent bunion. As the first toe deviates medially (toward the midline) in a bunion deformity, it crowds against the second toe and pushes it upward and laterally. This creates a persistent deforming force on the second toe’s MTP and PIP joints. This is precisely why hammertoe correction and bunion correction are so frequently performed together: if the bunion is not corrected simultaneously, the deforming force on the second toe remains, and hammertoe recurrence is far more likely.
Flexible vs. Rigid Hammertoe — The Critical Distinction
The single most important factor in determining whether a hammertoe can be treated conservatively — or requires surgery, and which type — is whether the deformity is flexible or rigid. This is assessed by physical examination: can the toe be manually straightened to a neutral position?
The toe can be manually straightened. The joint passively corrects when pushed into a neutral position. The tendons and joint capsule have not yet fully contracted.
Conservative treatment is effective and surgery is often avoidable. Splinting, wide-toe-box footwear, and orthotics can prevent progression. If surgery is needed, less invasive soft-tissue procedures (tendon lengthening, capsulotomy) may be sufficient.
The toe cannot be manually straightened. The joint is fixed in flexion. The tendons and capsule have permanently shortened and the joint surfaces may have adapted to the abnormal position.
Conservative care cannot correct the deformity — only manage symptoms. Surgical correction is required for meaningful improvement. The procedure typically involves bone work (condylectomy or arthroplasty/fusion at the PIP joint) in addition to soft tissue release.
Most hammertoes begin as flexible deformities. Without intervention — appropriate footwear, splinting, correction of contributing factors — they progressively stiffen over months to years and eventually become rigid. This transition from flexible to rigid is not reversible with conservative care. It is the central reason why early evaluation and proactive management are so important: the longer a hammertoe is tolerated without treatment, the more limited the eventual treatment options become.
Symptoms and When to Seek Evaluation
Common Symptoms of Hammertoe
I recommend prompt evaluation for any hammertoe that is causing pain, limiting footwear choices, developing a wound, or showing signs of rapid progression. In diabetic patients, a hammertoe with a corn or overlying callus is a wound-risk factor that warrants early podiatric assessment regardless of symptom severity.
Conservative Treatment Options
For flexible hammertoes — and for symptom management in rigid hammertoes where surgery is deferred — a range of conservative measures can provide meaningful relief and slow progression.
Medicated corn pads containing salicylic acid are widely available and frequently used by patients attempting to manage hammertoe corns at home. For patients with diabetes, peripheral neuropathy, or poor circulation, these products carry a real risk of chemical burns and wound formation — particularly because the patient may not feel the burn developing. Corn removal should be performed by a podiatrist using a scalpel in a clinical setting, not with chemical agents at home.
When Surgery Is Indicated
The decision to proceed with hammertoe surgery is based on a combination of clinical findings, severity of symptoms, and patient goals. Surgery is generally indicated when:
Flexible vs. Rigid Determines Which Procedure Is Needed
For flexible hammertoes, surgery involves soft-tissue procedures only — lengthening the tight flexor tendon (flexor tenotomy), releasing the contracted joint capsule (capsulotomy), and sometimes transferring a tendon to rebalance the toe. These are minimally invasive techniques with rapid recovery and excellent results when performed on a toe that still has mobile joints.
For rigid hammertoes, bone work is required in addition to soft-tissue release. The most common procedure is a proximal interphalangeal (PIP) joint arthroplasty — removal of a small segment of the bent bone end to allow the toe to straighten — followed by stabilization with a temporary pin or implant. In select cases, PIP joint fusion (permanent fusion in a straightened position) provides more durable long-term correction, particularly for severe or recurrent deformities.
When a hammertoe is corrected alongside a bunion, the two procedures are planned together so that correcting the bunion removes the deforming force on the lesser toes, reducing the likelihood of hammertoe recurrence after surgery.
What Hammertoe Surgery Involves
Hammertoe correction is performed as an outpatient procedure under local anesthesia with sedation. Most patients walk out of the surgical center the same day in a surgical shoe or post-operative sandal. Here is what the procedure involves:
PIP joint arthroplasty (most common for rigid hammertoe): A small incision is made over the bent PIP joint. The extensor tendon is split and reflected, and the head of the proximal phalanx (the bony prominence causing the deformity) is removed with a bone cutter or small saw. The toe is then straightened, and a temporary surgical pin (Kirschner wire, or K-wire) is placed through the tip of the toe to hold it in the corrected position for 4 to 6 weeks while the soft tissues heal and stabilize. The pin protrudes from the tip of the toe and is removed at a clinic visit — this is a quick, well-tolerated procedure.
PIP joint fusion (for severe or recurrent cases): Instead of simply removing the bony prominence, the joint surfaces are prepared and fused together with an internal implant or screw in a straightened, functional position. This provides more permanent correction but eliminates any residual motion at that joint — which is acceptable given that most rigid hammertoes have very little useful motion remaining anyway.
Flexor tenotomy (for flexible hammertoe): A very small incision — sometimes just a stab incision — is used to release the tight flexor tendon. This immediately allows the toe to straighten. Recovery is rapid and the results are excellent when performed on an appropriately selected flexible hammertoe.
Many patients are apprehensive about having a pin protruding from the tip of their toe. In practice, the pin is covered with a small dressing and causes minimal discomfort once the immediate post-operative period passes. Most patients adapt quickly and find it far less bothersome than anticipated. The pin is removed at 4 to 6 weeks in a brief clinic visit — no anesthesia required, and most patients report feeling only mild pressure. Absorbable internal implants are an option in some cases, eliminating the need for pin removal entirely.
Recovery Timeline
Walking in surgical shoe immediately. Elevation and ice for swelling. Dressing maintained. Minimal pain — regional nerve block provides extended post-op relief.
Pin or dressing in place. Surgical shoe for forefoot protection. Swelling and stiffness normal. Wound check at 2 weeks; pin removed at 4–6 weeks.
Transition to wide athletic shoe. Toe buddy-taped to adjacent toe for support. Swelling gradually resolving. Light activity resumes.
Full resolution of swelling. Normal footwear. Return to athletic activity. Final appearance of corrected toe visible as all swelling resolves.
Hammertoe surgery recovery is significantly shorter and easier than bunion surgery. Most patients are pleasantly surprised — particularly by how manageable pain is and how quickly they can return to regular footwear. Stiffness in the corrected toe is normal and gradually resolves over several months; the goal is a straight, comfortable toe, not a mobile one.
Frequently Asked Questions
In most cases, yes — hammertoes are progressive deformities that tend to worsen over time, particularly if the contributing factors (narrow footwear, an adjacent bunion, flat feet) are not addressed. The rate of progression varies significantly between patients, but the transition from flexible to rigid is irreversible. Early intervention — even conservative measures — is almost always preferable to waiting until the deformity is fixed and surgery becomes the only option.
Yes — and in many cases, it should be. When a bunion is the primary deforming force causing the second toe hammertoe, correcting the bunion and the hammertoe in the same surgical session removes the cause and the consequence simultaneously. Planning them together also means one anesthesia event, one recovery period, and a single rehabilitation course. I perform combined bunion and hammertoe correction frequently and find that outcomes for both deformities are optimized when they are addressed together.
The goal of hammertoe surgery is a toe that is straight enough to fit comfortably in normal footwear without a painful corn, not necessarily one that is anatomically perfect. Some residual stiffness and a slightly imperfect appearance are common and generally do not affect function. The surgical result is also influenced by the severity of the original deformity — very long-standing, severely contracted hammertoes may have more residual stiffness than those corrected earlier in their course.
Hammertoe surgery is covered by most insurance plans — including Medicare — when it is performed for medical necessity: pain, functional limitation, or wound formation. Purely cosmetic toe correction is not covered. Documentation of conservative care attempts and their inadequacy is typically required prior to surgical authorization. Our billing team manages insurance verification and pre-authorization before your surgical date so there are no surprises.
Recurrence is possible — particularly if the underlying cause is not simultaneously addressed. The most common reason for hammertoe recurrence is an uncorrected adjacent bunion that continues to exert a deforming force on the lesser toes after surgery. Wearing appropriate footwear, using orthotics to manage biomechanical contributors, and avoiding narrow or pointed shoes helps maintain surgical correction long-term. When I perform hammertoe surgery, I discuss all contributing factors with each patient and address them as part of a comprehensive plan.
Multiple hammertoes can be corrected in a single surgical session. It is common to correct two, three, or even four toes at once — particularly when they are all being addressed as part of a combined bunion and hammertoe correction. Correcting multiple toes simultaneously does not significantly increase recovery time compared to a single toe, and it spares the patient from having multiple separate procedures and recovery periods.
Don’t Wait Until Conservative Options Are Gone
Hammertoe is most treatable when it is caught early — before the deformity becomes rigid. Whether you need conservative care or surgical correction, we are here to help at four convenient Bay Area and Monterey locations.
Medical Disclaimer: The information in this article is for general educational purposes only and does not constitute individualized medical advice. Please consult a licensed podiatric physician for evaluation and treatment of any foot or ankle condition.
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